Which is cheaper, the Boldr Odyssey 40mm or the Seiko Prospex Sea?

At MSRP the Seiko Prospex Sea is the cheaper of the two at $625, against $799 for the Boldr Odyssey 40mm — a $174 gap before any retailer discounting.

Which is bigger, the Boldr Odyssey 40mm or the Seiko Prospex Sea?

The Seiko Prospex Sea wears larger at 43.8mm versus 40mm for the Boldr Odyssey 40mm — a 3.8mm difference across the dial.

Which has better water resistance, the Boldr Odyssey 40mm or the Seiko Prospex Sea?

The Boldr Odyssey 40mm is rated to 300m versus 200m for the Seiko Prospex Sea.

Which has a longer power reserve, the Boldr Odyssey 40mm or the Seiko Prospex Sea?

The Boldr Odyssey 40mm carries a 42-hour power reserve against 41 hours on the Seiko Prospex Sea.

What movement does the Boldr Odyssey 40mm run compared to the Seiko Prospex Sea?

Both watches run automatic movements — the Boldr Odyssey 40mm uses the Miyota and the Seiko Prospex Sea uses the 4R35.

Side by side

Boldr Odyssey 40mmvsSeiko Prospex Sea

The numbers, the dial colors, the calibers — laid out so you can stop flipping between tabs.

Boldr Odyssey 40mm

odyssey-aurora

MSRP $799

Seiko Prospex Sea

srpe37

MSRP $625

At a glance

13 of 29 specs differ

Diameter

Odyssey 40mm40mm

Prospex Sea43.8mm

Power Reserve

Odyssey 40mm42h

Prospex Sea41h

Water Resistance

Odyssey 40mm300m

Prospex Sea200m

MSRP

Odyssey 40mm$799

Prospex Sea$625

Full specifications

Case

6 specs

Diameter

40mm

43.8mm

Thickness

12.5mm

12.8mm

Lug-to-Lug

48mm

48.7mm

Lug Width

20mm

22mm

Material

Titanium

Stainless Steel

Water Resistance

300m

200m

Crystal & Dial

3 specs

AR Coating

Yes

Anti-reflective coating on inner surface

Dial Color

Aurora

Black

Lume

Super-LumiNova

LumiBrite on hands, index(es) and bezel

Movement

3 specs

Caliber

Miyota

4R35

Power Reserve

42h

41h

Jewels

Pricing

1 specs

MSRP

$799

$625

Follow this matchup

Get a note when Boldr Odyssey 40mm vs Seiko Prospex Sea gets more votes, a community discussion, or a price drop. No account needed.

Keep exploring

More watches worth a look

Matched to the watches above on size, movement, style and price — microbrands first. Open any one to dig in.

Balticmicro

Adjacent matchups

People also compared

Comparisons nearby in the catalog — alternatives to the watches above paired against the matchup.

Baltic Aquascaphe TitaniumvsSeiko Prospex Sea Boldr Odyssey FreedivervsSeiko Prospex Sea Borealis Watch Co. Porto CovovsSeiko Prospex Sea Seiko Prospex SeavsZelos Blacktip 200m Ti Boldr Odyssey 40mmvsBorealis Watch Co. Jamanta Spinnaker PopeyevsBoldr Odyssey 40mm

Edit this comparison Add another watch More diver comparisons Best Diver Watches Under $1,000 Explore more 39–45mm watches

Boldr Odyssey 40mmvsSeiko Prospex Sea

At a glance

Full specifications

Follow this matchup

More watches worth a look

Aquascaphe Titanium

Jamanta

Porto Covo

Popeye

Blacktip 200m Ti

Wreck Automatic

Sea-Hunter Dive Watch

Swordfish 3

People also compared